1. Computer Vision
Title of presentation
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2. Computer work is very demanding on your visual system
Computers and vision
Computer work is very demanding on your visual system

3. Visual symptoms include
Headaches
Sore, tired eyes
Watery or dry eyes
Blurred vision

4. Dry Eye Inadequate tear cover on cornea Common in computer users
(due to less blinking)
Common in air conditioned environments
Tear supplements can be used

5. Comfortable vision Regular visual breaks when working
Work station set up
Treatment of any focusing problems
Correction of refractive error

6. Computer work station set up
Screen should be easy to focus on
Monitor height
top of screen below eye level
bottom of screen can be read without leaning forward

7. To reduce screen glare
Place monitor to the side of light source (not underneath)
Tilt screen
Anti glare cover
Adjust brightness, contrast (eg dark characters on a light background)
Anti-reflective coating if you wear glasses

8. Visual problems can be caused by
Uncorrected refractive error
Focusing problems
Problems with eye health

9. Refractive errors
Light entering the eye does not focus exactly on the back of the eye
Short-sightedness, long-sightedness and astigmatism, presbyopia
Can be corrected with glasses or contact lenses

10. Diagram of an eye

11. Normal focus

12. Short sightedness (Myopia)
Distance vision blurry, near vision usually ok
Short sighted focus Short sighted correction

13. Long sightedness (Hyperopia)
Difficulty seeing clearly and comfortably up close
Long sighted focus Long sighted correction

14. Astigmatism The eye is shaped more like a football than a basketball
Focusing error that causes blur in one direction

15. Presbyopia Begins from age 40 onwards
Small print is clearer if held further away
The lens inside the eye is less flexible
Glasses for reading restore close vision

16. Focusing problems
Accommodation
Vergence
Binocular vision

17. Problems with eye health that may cause visual symptoms
Diabetes
Hypertension
Age-related conditions
Cataract
Age-related macular degeneration
Glaucoma

18. Your eyes need to be examined regularly
No referral is required
Eye examinations attract a Medicare rebate
Find your local optometrist at

19. Optometrists Provide a comprehensive visual examination
Detect and diagnose eye health problems
Prescribe and supply glasses and contact lenses when required
Diagnose and treat eye coordination and focusing problems